“ electrotherapy? Why isn't electric current used to treat tumors? It would involve the insertion of two electrodes on either side of the tumor, a... (read full comment) ” 

Posted on October 25, 2007 at 6:44 PM EDT

“ Really? I tried constructing actuators out of a strip of cellulose paper and electrodes out of conductive paint. It didn't work. (read full comment) ” 

Posted on January 15, 2007 at 5:48 PM EST